Duplex die



Jan, 17, 1939.` w. s. HERscHEL ET AL 2,144,050

DUPLEX DIE Filed Aug. l, 1938 4 sheets-sheet 1 Jan. 17, 1939. w. s. HE'Rsc'HEL Er AL 2,144,060

I. DUPLEX DIE Filed Aug. l, 1958 4 Sheets-$heet 2 Jan. 17, 1939; w. s. HERscHEL VEr AL 2,144,050

DUPLEX DIE Filed Aug'. l, 1938 4 Sheets-Sheet 3 Jan. 17, 1939. W s, HERSCHEL Er AL 2,144,060

DUPLEX DIE Filed Aug. 1,1938 4 sheets-sheet 4 Patented Jan. 17, 1939 UNITED STATES PATENT OFFICE DUPLEX DIE Missouri Application August 1, 1938, serial No. 222,352

12 Claims.

The present invention relates to die units which are used in the manufacture of shoes to provide iitted shoe uppers with ornamental cut-outs or perforaticns. By a fitted shoe upper, We mean one that is nished, at least to the extent of being lined, but which may or may not be closed at the heel.

In ornamenting tted shoe uppers, it is often desirable to provide the opposite side faces thereof with cut-outs or groups of perforations, the cut-out or group 0i cut-outs or perforations on one side face being the opposite duplicate laterally, but not longitudinally, of the cut-out or group of cut-outs or perforations upon the other side face. As disclosed in our application led September 17, 1937, Serial No. 164,338, these opposite duplicates may be formed simultaneously in a Western cut-out machine in a single cycle thereof by mounting a die for ornamenting one side oi a tted upper on the vertically reciprocating overhead die carrier disclosed in the patent to Altvater, No. 1,938,678, December 12, 1933, the die for ornamenting the other side of the fitted upper being mounted in a die unit having a Work support constructed to support iiatwise the opposite sides of the fitted upper in position to be ornamented simultaneously by the two dies, respectively. The die unit is mounted to slide from and to a position of clearance to and from a position of pressure upon the flat upper surface of a work-supporting bed mounted directly beneath the overhead die. With this construction and mode of operation, the two dies are mounted separately, thus limiting the scope of their use to a machine of the type disclosed in the patent to Altvater hereinbefore identied. It is, however, highly desirable that the broad features of the invention disclosed in our application hereinbeore identified be embodied in a single die unit which may be readily inserted for use in ornamenting machines of the type in which the overhead reciprocating plunger carries a die striking plate instead of a die.

The principal object of the present invention is to produce a self-contained die unit embodying two `dies for ornamenting the opposite sides of a fitted shoe upper, respectively, and a work support interposed between the opposite sides of the fitted upper for supporting them in position to be ornamented by the dies, respectively.

To the accomplishment of this object, and such others as may appear hereinafter, the various features of the present invention consist in certain devices, combinations and arrangement of parts hereinafter described and then pointed out broadly and in detail in the appended claims which possess advantages readily apparent to those skilled in the art.

The various features of the present invention will be understood readily from an inspection of the accompanying drawings illustrating the best form oi the invention at present known to the inventors, in which Figure 1 is a View in plan of the die unit;

Fig. 2 is a detail view in sectional elevation on the line 2 2, Fig. 1;

Fig. 3 is a view in plan, the pivoted die having been removed to expose to view underlying parts;

Fig. 4 is a detail view in sectional elevation on the line -lL Fig. 3;

Fig. 5 is a View in sectional elevation on the line 5--5, Fig. 1;

Fig. 6 is a view in sectional elevation on the line 6 6, Fig. 1;

Fig. 7 is a detail view in underside plan of the pivoted die;

Fig. 8 is a detail view in bottom plan of the base; and

Fig. 9 is a detail View in plan of the base and the die rigidly supported therefrom.

In the embodiment of the invention, illustrated in the drawings, the self-contained die unit may be slid from and to a position of clearance to and from a position of pressure in any of the well-known types of ornamenting machines in which it is customary to locate the die unit beneath the vertically reciprocating striking plate. To this end, the self-contained die unit is provided With a flat base lil, the opposite side faces of which will be embraced b y the usual machine rails which guide the sliding movement of the base from and to a position of clearance to and from a position of pressure.

Rigidly mounted upon the upper face of the base is a die il (Fig. 5), having upstanding cutting edges i2. For convenience in disclosure, these cutting edges I2 are shown as forming parts of tubes I3, but it will be apparent to those skilled in the art that these tubes constitute merely one form of ornamenting means, which term is intended herein to include all the means used in the manufacture of shoes for ornamenting shoes, whether or not the shoe is out during the ornamenting operation. As usual in this type of die, selected for purposes of disclosure, it embodies a tube holding plate I, a tube rest plate I5, and a die block I6 rigidly secured together and to the base.- The tube rest plate is provided with openings I'I which register with the hollow tubes I3, so that the pills cut-out of the work may drop down, through openings I8 and I9, formed, respectively, in the die block I6 and base I l), upon the flat working surface of the machine bed, from which the pills are wiped by the face 2B of the base It when the die unit is withdrawn from a position of pressure into a position of clearance.

The die II ornaments one side of a folded tted shoe upper. The opposite side of the folded tted shoe upper is ornamented by a die 2l, (Fig. 5), provided with perforating tubes 22 having depending cutting edges 23. These cutting edges 23' form an ornamental design which is the opposite duplicate laterally, but not longitudinally, of the ornamental design formed by the cutting edges I 2. The tubes 22 are mounted in a tube holding plate 2li with the ends of the tubes opposite the cutting edges 23 engaged with a tube rest plate 25. The plates 24 and 25 are secured together and to an elongated die block plate 25, the sides of which, adjacent the rear end thereof, are down-turned to form ears 2l and 25,' (Figs. 3, 6 and '7), through which the plate 2t is pivoted on a pin 29.

To this end, each ear is provided with a vertically elongated slot 35, (Fig. 6). Each slot 323 embraces the pin 2S which fits removably in horizontal holes 32 and 33 formed, respectively, in posts 34 and 35, the bases of which are secured to the upper surface of the base IS. The ears 2l' and 28 are received, respectively, in vertical kerfs S6 and 3l, (Fig. 9), formed in the upper portions of the posts 35 and 35. The posts are chambered to receive a small piston 38, (Fig. 6), the upper surface of which butts against the straight edge constituting the bottom of the adjacent ear, the other face of the piston being engaged by one end of a coiled spring 39, the other end of which engages the bottom of the chamber in the post.

With this construction, the die block plate 25 may be swung into a vertical position on the pin 29 to facilitate the location of the work over the die l i, whereupon the plate 25 may be swung into the position of Fig. 5. 'I'he die block plate 26 carrying the die 2| may be removed from the selfcontained die unit by withdrawing the pin 29 from the holes 32 and 33. The springs 39, by holding the pin 25 engaged with the bottoms of the elongated slots 35 in the ears 2l and 2S, insure the proper alignment of the cutting edges 23 of the die 2l with the cutting edges l2 of the die ll in parallel planes as shown in Fig. 5. In addition, the springs 39 permit the die 2i to yield when the striking plate of the machine strikes the upper surface of the plate 2S. To accommodate for this yield, the front end of the plate 2G is provided with a depending pin 45, (Fig. 5), which ts loosely an opening lll formed in a Z shaped plate 42 secured to the upper surface of the base I5.

The pills formed out of the work by the tubes 22 pass up therethrough and through openings i3 formed inthe tube rest plate 25 into recesses 44, (Fig. l), formed in the upper surface of the plate 26, from which recesses the pills may be dislodged when the plate 2t is swung, on the pin 29, into its inoperative position.

The folded fitted shoe upper is supported by a flat plate 55, (Fig. 5), having a hardened steel die striking plate 46 on one face and a hardened steel die striking plate il on the other face, the plate 45 cooperating with the die 2l and the plate 4l cooperating with the die H. The front end of the plate l5 is pivoted on a pin i8 carried removably by posts i9 secured to the upper surface of the base I0. To this end, the sides of the plate t5 near their front ends are provided with ears 55 corresponding to the ears 2l and 28 on the plate 25. The connection between the ears 58 and the posts 59 is identical with the connection between the ears on the plate 255 and its posts. The posts i9 are provided with a piston 5I, (Fig. 5), and a spring 52 corresponding in function to the piston 3S and the springs 39 in the posts 3d and 35. It is thus apparent that the work supporting plate e5 may be swung from the position of Fig. 5 into a vertical position, may be removed readily from the self-contained die unit, may yield vertically during the ornamenting operation, and may be maintained aligned in a horizontal plane parallel to the planes, respectively, of the cutting edges l2 and 23 during the ornamenting operation.

To locate the Work on the work supporting plate, it is swung into a vertical position, thus exposing to view a straight edge face (Fig. 3) formed by the rear edges of the plates 15, 56 and lll. For convenience in disclosure and because the various features of the present invention are peculiarly advantageous in connection with the ornamentation of the sides of a Gypsy tted upper in which the two vamp portions are joined by a seam, like a back seam, but having a California welt located in the seam crease. This seam crease extends medially of the shoe from the toe to the throat thereof. The fitted upper is folded evenly on opposite sides of the seam crease and is then hung on the straight edge face 53 which engages the lining directly beneath the exposed seam crease, one side of the folded tted upper extending over the striking plate i5 and the opposite side of the folded tted upper extending over the striking plate el. The position of the exposed top edges at the opposite sides of the throat of the folded fitted upper are gauged by blocks 563 and 55, (Figs. l, 3 and 4), secured, respectively, to the plates C15 and 47.

The folded tted upper is clamped to the edge face 53 by a straight edge 55 which enters the exposed seam crease of the upper and presses it rmly into engagement with the edge face 53. The straight edge 55 is formed on the bottom of an arm 5l, one end of which is pivoted on an ear 58 secured to the plate t5. The other end of the arm 58 is provided with a finger piece 59 which, when the arm 57 is in clamping position, extends adjacent to a second finger piece 6c integral with the plate 5. These finger pieces enable the operative to impart considerable pressure to the straight edge 55 in clamping the folded tted upper to the edge face 53.

In order to insure the retention of the arm 5'I in its desired clamping position, the opposite sides thereof are provided with spring clips 6I which embrace the two portions of the vamp upon opposite sides of the seam crease engaged by the straight edge 5t. Moreover, the opposite sides of the plate L35, adjacent the finger piece 6U, carry spring clips 52, (Fig. 2), which embrace the opposite sides of the arm 5l. Furthermore, to insure that the elasticity of the folded fitted upper may not spring it out of position after it is gauged and clamped, the upper surface of the base iii is provided with a vertically tapered pin 63, (Fig, 3), which, when the work support is swung downwardly into its operating position, engages the arm 5l and readjusts the clamping position of the straight edge 56.

With the parts arranged as in Fig. 5 and the work interposed between the dies II and 2l, the self-contained die unit is moved in a Well-known type of ornamenting machine from a position of clearance to a position of pressure, in which position the one-revolution clutch of the machine is tripped to cause the striking plate of the machine to strike the exposed face of the plate 26, thus causing the dies Il and 2l to ornament the opposite sides of the folded fitted shoe upper simultaneously. When the self-contained die unit is returned to the position of clearance, the plates and 45 are swung into vertical positions successively, the ornamented work removed from the work support and a new piece of work placed thereon, gauged and clamped. The plates 45 and 26 are then swung into horizontal positions successively completing the cycle.

While the particulars of construction herein set forth are well suited to a simple structural form of the invention, it is not limited to these details of construction, nor to the conjoint use of all their features, nor is it to be understood that these particulars are essential, since they may be modified within the skill of the artisan without departing from the true scope of the actual invention, characterizing features of which are set forth in the following claims by the intentional use of generic terms and expressions, inclusive of various modifications.

What is claimed as new, is:

1. In a self-contained die unit, the combination with two dies for ornamenting the opposite sides of a fitted shoe upper, of a work support interposed between the opposite sides of the fitted shoe upper for supporting them in position to be ornamented by the dies, respectively.

2. In a self-contained die unit, the combination with a base, a die having upstanding cutting edges mounted on the base for ornamenting one side of a fitted shoe upper, and a die having depending cutting edges mounted on the base for ornamenting the opposite side of the fitted shoe upper, of a work support interposed between the opposite sides of the fitted shoe upper mounted on the base and movable from a position clear of the dies to a position interposed between them.

3. In a self-contained die unit, the combination with a base, a die having upstanding cutting edges mounted on the base for ornamenting one side of a fitted shoe upper, and a die having depending cutting edges mounted on the base for ornamenting the opposite side of the fitted shoe upper, of a work support interposed between the opposite sides of the fitted shoe upper mounted on the base and movable from a position clear of the dies to a position interposed between them, the dies being relatively movable to permit the work support to be interposed between them.

4i.r In a self-Contained die unit, the combination with a base, a die rigidly supported therefrom for ornamenting one side of a fitted shoe upper, a separate die pivoted from the base for ornamenting the opposite side of the fitted shoe upper, of means pivoted from the base and interposed between the opposite sides of the fitted upper for supporting them in position to be ornamented by the dies, respectively.

5. In a self-contained die unit, the combination with a base, a die rigidly supported therefrom for ornamenting one side of a fitted shoe upper, and a separate die pivoted from the base and movable into a position in which its cutting edges are directed towards the cutting edges of the other die for ornamenting the opposite side of the fitted shoe upper, of means interposed between the opposite sides of the fitted upper for supporting them in position between the dies to be ornamented thereby, respectively.

6. In a self-contained die unit, the combination with a base, a die, for ornamenting one side of a folded fitted shoe upper, rigidly supported from the base, and a die, for ornamenting the other side of the folded fitted shoe upper, yieldingly supported from the base and pivoted to swing into and out of a position in which its cutting edges are directed towards the cutting edges of the other die, of a work support, interposed between the opposite sides of the fitted upper, yieldingly supported from the base and pivoted to swing into and out of a position between the dies.

7. In a self-contained die unit, the combination with a base, a die, for ornamenting one side of a folded iitted shoe upper, rigidly supported from the base, and a die, for ornamenting the other side of the folded fitted shoe upper, yieldingly supported from the base and pivoted to swing into and out of a position in which its cutting edges are directed towards the cutting edges of the other die, of a work support, interposed between the opposite sides of the fitted upper, yieldingly supported from the base and pivoted to swing into and out of a position between the dies, the base having a bracket to which the pivoted die is connected loosely.

8. In a self-contained die unit, the combination with an ornamenting die and a work supporting plate having an exposed edge face shaped to engage at least a portion of the inside median line of a folded fitted shoe upper, of a clamp having an edge shaped complemental to the shaped edge face to engage at least a portion of the outside median line of the folded fitted shoe upper and clamp it to the shaped edge face.

9. In a die unit, the combination with an ornamenting die, and a work supporting plate having a straight exposed edge face shaped to engage at least a portion of the inside median line of a folded fitted shoe upper directly beneath the longitudinal median seam joining the two portions of the vamp, of a clamp having an edge shaped to enter the crease of the said seam and clamp the fitted shoe upper to the shaped edge face.

10. In a die unit, the combination with an ornamenting die, and a work supporting plate having a straight exposed edge face shaped to engage at least a portion of the inside median line of a folded fitted shoe upper directly beneath the longitudinal median seam joining the two portions of the vamp; of a clamp having an edge shaped to enter the crease of the said seam and clamp the fitted shoe upper to the shaped edge face, said clamp having arms to embrace the two portions of the vamp adjacent the seam crease.

I1. In a die unit, the combination with an ornamenting die, and a work supporting plate having a straight exposed edge face shaped to engage at least a portion of the inside median line of a folded fitted shoe upper directly beneath the longitudinal median seam joining the two portions of the vamp, of a clamp having an edge shaped to enter the crease of the said seam and clamp the fitted shoe upper to the shaped edge face, said clamp having arms to embrace the two portions of the vamp adjacent the seam crease, and means for locking the clamp in clamping position.

12. In a die unit, the combination with an ornamenting die, and a work supporting plate having a straight exposed edge face shaped to engage at least a portion of the inside median line of a folded tted shoe upper directly beneath the longitudinal median seam joining the two portions of the vamp, of a clamp having an edge shaped to enter the crease of the said seam and clamp theA tted shoe upper to the shaped edge face, said clamp having arms to embrace the two portions of the vamp adjacent the seam crease,

and means for locking the clamp in clamping position, each face of the plate adjacent the exposed edge face having a gauge arranged to engage the top edge of one of the vamp portions.

WUJLIAM S. HERSCHEL. ARTI-HTRI H. ANTRAINER. 

